18250925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 29760000

約数和(自身を除く): 11509075

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 77, 95, 133, 175, 209, 275, 385, 475, 499, 665, 1045, 1463, 1925, 2495, 3325, 3493, 5225, 5489, 7315, 9481, 12475, 17465, 27445, 36575, 38423, 47405, 66367, 87325, 104291, 137225, 192115, 237025, 331835, 521455, 730037, 960575, 1659175, 2607275, 3650185, 18250925]

約数ペア:

[(1, 18250925), (5, 3650185), (7, 2607275), (11, 1659175), (19, 960575), (25, 730037), (35, 521455), (55, 331835), (77, 237025), (95, 192115), (133, 137225), (175, 104291), (209, 87325), (275, 66367), (385, 47405), (475, 38423), (499, 36575), (665, 27445), (1045, 17465), (1463, 12475), (1925, 9481), (2495, 7315), (3325, 5489), (3493, 5225)]